Question

tính:

\(\dfrac{\left(-6\right)^6}{216}\) \(\dfrac{64}{\left(-4\right)^5}\) \(\dfrac{900}{\left(-30\right)^3}\) \(\dfrac{225}{\left(-15\right)^3}\)

giúp giùm nha cần gấp lắm

Answer 1

\(\text{a) }\dfrac{\left(-6\right)^6}{216}=\dfrac{6^6}{216}=\dfrac{6^6}{6^3}=6^3=216\)

\(\text{b) }\dfrac{64}{\left(-4\right)^5}=-\dfrac{64}{4^5}=-\dfrac{4^3}{4^5}=-\dfrac{1}{4^2}=-\dfrac{1}{16}\)

\(\text{c) }\dfrac{900}{\left(-30\right)^3}=-\dfrac{900}{30^3}=-\dfrac{30^2}{30^3}=-\dfrac{1}{30}\)

\(\text{d) }\dfrac{225}{15^3}=\dfrac{15^2}{15^3}=\dfrac{1}{15}\)

Answer 2

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